I wish there was some kind of unique dialogue for beating the boss at the very start, it doesn't seem like it's possible or at the very least i feel like i was whaling on her for way longer than she takes to go down once you reach the actual game. Shrimpie's a great brat tho, really nice designs and art. Everyone's said most things that i could say, but one thing is it doesn't seem like the elements have any difference from one another? you seem to get an interchangeable powerup to your sword and an interchangeable heavy attack and that's about it. so either that's just something not communicated or it's something to be expanded upon if more work is done.
EDIT: Oh yeah and the SFX are really quiet by default. They just get completely drowned out by the music. Dunno if anyone else mentioned that.